Greatest mass #extinction driven by acidic #oceans, study finds
▻http://www.sciencedaily.com/releases/2015/04/150409143033.htm
Summary:
Changes to the Earth’s oceans, caused by extreme volcanic activity, triggered the greatest extinction of all time, a study suggests. The amount of #carbon added to the #atmosphere that triggered the mass extinction was probably greater than today’s fossil fuel reserves, the team says. However, the carbon was released at a rate similar to modern emissions. This fast rate of release was a critical factor driving ocean acidification, researchers say.